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amplifer

  1. J

    Budget amplifier(s) for multi-zone setup?

    Hi all! I'm an audio novice and new to this forum. I'm hoping to retrieve your support in which amplifier I should get for my budget multizone project as I'm currently going back and forth on this matter... I'm currently renovating my house and have invested in both Lithe Audio and Micca...
  2. M

    Toa TA 312E

    Hey people, I have a guy who's selling a Toa TA 312E for 20€. I thought it might be good to use for recording to cassette as it has a separate rec out. From what I can tell it's a 30W PA amp, although I have no intentions on using it for a PA system. Anyone know more about this amp or Toa in...
  3. A

    Denon PMA-600NE, Yamaha A-S501 or Rotel RB-850?

    I'm looking to replace a cheap amp I'm currently using for my setup. From my research, I've narrowed it down to the Denon PMA-600NE and the Yamaha A-S501. Out of these two, it seems the Yamaha would be the better choice. However, I've just recently acquired a Rotel RB-850 for $15 dollars, and it...
  4. PROJECT 2501

    Model 32 amplifier with 100mv DC offset in the right channel

    Left channel is steady at 35mv Right channel went from 75mv to 98mv Right channel produces a disgusting buzz/humm through the right speaker that is constant no matter the amount of attenuation. Needless to say that it's in need of repair, that's a given. I'd just like to know if these...
    • PROJECT 2501
    • Thread
    • amplifer bias dc offset magic smoke marantz model 32 recap repair restoration
    • Replies: 2
    • Forum: Marantz Audio
  5. A

    I need advice on a new amplifier…

    Hello, my name is Assen. The current components I have are: Dali Zensor 5 Marantz PM 6010 ose Topping D50s Onkyo DX-1400 Sony CDP-XE 330 I like the sound of the Marantz PM6010ose, but I think the Dali Zensor 5 may sound better. I am considering replacing it with Marantz PM80 or Marantz...
  6. teddyfreddy

    Calbest 8211 stereo twin amplifier

    Hi all, I recently acquired a Calbest 8211, I brought it up on a variac and the left channel works, the right has a little hum and hiss and that's about it. First of all, would anybody know where I can find a schematic for this amp? It doesn't seem to be listed in the Sams photofact index. Also...
  7. H

    Metal film resistors- Yamaha A1

    Need to replace some 1.5Kohm resistors in the Drive board of a DC coupled Yamaha A1 amp. Originals were carbon, anything inherently wrong or risky in using good quality metal film resistors which I have in stock?
  8. Q

    reccomend Vintage or New Integrated amp on a budget

    First of all I am newbie in here as well as into the Vinyl world ( after 80s when we sold off all the nice duals we had :{ ) I am looking to setup a decent system on a tight budget again - Turntable - Already secured a technics SL-1210 MKII which comes with an Ortofon concord needle...
  9. H

    Yamaha A1 restoration 2021

    Hi all. First question. Want to discharge those two big caps before I touch anything... Please can anyone tell me exactly how best I should perform this procedure? Apparently it was switched on in the last couple of days.
    • Hifibythekg
    • Thread
    • amplifer capacitor yamaha yamaha a-1
    • Replies: 463
    • Forum: Yamaha
  10. H

    Amplifier - 110V to 240V mains transformer

    Mains voltage in the UK is 240V. If I want to use an integrated amplifier of 400W or so and it’s spec is 110V.... what type, or level of quality do I need for a step down transformer? What specs should I be looking for in the transformer? Presuming that I can’t just plug in a 110V travel adapter...
  11. G

    1990s Power Amplifiers

    So I recently bought a secondhand Rotel RB-985 to power my MartinLogan bookshelf speakers. I'm running a somewhat modest Yamaha Aventage AVR. I knew the MartinLogans would open up with a little more power, but man, I was surprised how well the mid-90s Rotel improved attack and overly clarity of...
  12. Ray122

    Marantz 4270 Help...

    Alright, so I've got a Marantz 4270 with a bad channel, spitting out DC and throwing it into protection mode. Only one of the output transistors was shot, I believe it was the one that handles the negative swing. Otherwise, all the semiconductors on the board and otherwise are testing OK. I can...
    • Ray122
    • Thread
    • 4270 amplifer help marantz marantz 4270 output drivers repair repair channel diagnostics repair help
    • Replies: 6
    • Forum: DIY
  13. G

    Knowledge about Kenwood KA-7100?

    Hi everyone! I've been spending a lot of time recently lurking on AK, so I thought I'd go ahead and join and jump in the fray. I'm a total newbie, but have become (just a little bit!) obsessed by the idea of finding that warm, rich 70s sound I remember from my childhood. (I don't know what...
  14. TunerLanding

    Akai AM-U41 intermittent channel help!

    This amp came free with a turntable I wanted. Right side channel didn't work left was scratchy. Original 1982 unit that sat. I cleaned everything I could with d5 and now the music comes out of both channels. Except when I shut it off and restart then I have to surge the right speaker side...
  15. N

    Surge Protectors or Power Conditioners

    Hello All, I was at the local HiFi store today, and the gentleman I was speaking with is what I consider a very knowledgeable man. We started talking about power amps and the use of power conditioners. I mentioned that I have all of my gear plugged into surge protectors. He recommended that I...
  16. Connor G

    Harman Kardon HK770 Thread

    Ever since restoring and listening to the Harman Kardon hk770, I have been an extremely avid proponent of them. I can't recommend them enough to people looking for a relatively cheap power amplifier that can drive efficient tower speakers, bookshelf speakers, and even headphones with ease...
  17. HowlerMonkey

    Rotel vs Parasound vs (?): $/Watt

    Hi All, I am looking for a stereo SS amp in the 100 W channel range, 4 ohm stable. It will be used to power full range 3 way speakers or to power the lower range on a Bi-Amp setup. In the past i have gravitated towards Rotel RB and Parasound HCA Amps because I think they are a good match for...
  18. A

    Replacing Amp Help Needed

    I had an Episode ea-amp-2d-150a amp. 2 channels X 150 watts each that my audio installer used to allow my Sonos unit work with a 3rd speaker. I don't believe they make this amp anymore or don't sell to non installers. Can't locate my installer and was hoping to just swap it out myself. The amp...
  19. lattiboy

    I’ve got a nice power supply hanging around... looking for an amp!

    Hey there everybody, I got a ZeroZone O1-A for free recently in a trade. I don’t currently have any chip amps around, so I was looking for the most powerful stereo, decent sounding chip amp this 30VA bad boy could drive. I would prefer a power amp, but I don’t see too many of those in the chip...
  20. goodshelac

    Sansui QRX-5500 Died changing the lamps

    Good Evening AK'ers. So I did a rather stupid thing tonight. I had my 5500 apart on the bench for a cleaning and lamp replacement. I'm a novice at this so bear with me. I changed out the fuse lamps and those were all working great. I needed to replace one selector bulb and I forgot to turn off...
  21. W

    Amplifier Recommendations for Harbeth Super HL5+

    Hi folks, I've recently picked up a pair of Harbeth SHL5+ and I'm in need of a new power source for them. Doing some research, it seems most owners are recommending Luxman, Accuphase and Rogue Audio. I was wondering what the consensus is here. I was also looking into vintage tubes but I have...
  22. M

    Thiel 3.5 and Pioneer SX-980

    Hello! I am new to the AK community, and was hoping I could get some insight regarding a speaker/amplifier pairing. I just purchased a beautiful Thiel CS3.5 pair, and I currently own a Pioneer SX-980. 1) Can I reasonably power the 3.5’s with the Pioneer SX-980? 2) I’ve read that Thiel...
    • MisterLish
    • Thread
    • amplifer high current pioneer pioneer sx-980 thiel thiel cs3.5
    • Replies: 15
    • Forum: Speakers
  23. CrazyEddie69

    Looking for a good vintage stereo

    I am looking for some advice about getting an older integrated amplifier/receiver. I have ZERO knowledge and experience with older equipment. I have a 6.1 Marantz SR5200, but the sound is gutless in 2 channel stereo. I have purchased a new 7.2 Surround sound system (Denon) for my media...
  24. R

    Repair Denon PMA-280

    I am trying to repair my Denon PMA-280. The fuse blew, and it keeps blowing after replacement. I measured the transistors attached to the heatsink (C3853 and A1489), and one of them shorted on all combinations of the legs. This is the C3853 at place TR319 (schematic), for speaker channel B. I...
    • Rinkert
    • Thread
    • amplifer denon repair transistor
    • Replies: 4
    • Forum: DIY
  25. Hector81

    Hooking up Equalizer to Onkyo 9110

    Hi! I am a newbie here facing the endless issue of hooking up an equalizer to an amp. I have read many posts but I still cannot figure out how to do it in my particular system. I have an amp Onkyo 9110 and I just got an EQ JVC Sea-60. The amp has: 4 RCA Inputs, 1 RCA Line Out, 1 Pre-out for...
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